Siemens SITRANS FST030 User Manual (English)

Questions and Answers:

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James BrownSep 6, 2025
What to do if Siemens Measuring Instruments display shows no flow and measured sound velocity is 0 m/s with alarm codes 14, 15 and 34?
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  Sarah LeonardSep 6, 2025
  If your Siemens Measuring Instruments display shows no flow and the measured sound velocity is 0 m/s, and you're seeing alarm codes 14, 15, and 34, there could be several reasons. First, ensure the pipe is completely filled with liquid and consider relocating sensors to a normally full section, avoiding the top or bottom of horizontal pipes. Check the sensor cables for breaks or incorrect connections, verifying continuity by evaluating the DC resistance. Also, verify the pipe dimensions, sensor selection, mounting, and spacing, ensuring ultrasonic couplant is applied. Finally, the sensors or frontend hardware might be damaged; verify their operation using a pipe simulator 'Test block'.
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Shawn DavisSep 7, 2025
What to do if Siemens Measuring Instruments display is completely blank, but communication is still possible?
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  imcintyreSep 7, 2025
  If the display on your Siemens Measuring Instruments is completely blank, but communication is still possible on the service channel, check the cable connections between the display and Transmitter module. The HMI module may also be defective, in which case you should contact Technical Support.
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Robert HughesSep 9, 2025
What to do if Siemens Measuring Instruments display shows no flow and measured sound velocity is 0 m/s with alarm code 34?
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  morganrobinSep 9, 2025
  If your Siemens Measuring Instruments display shows no flow and the measured sound velocity is 0 m/s, accompanied by alarm code 34, it could be due to incorrectly installed sensors or incorrect setup parameterization. Verify the actual pipe dimensions against the entered values, and check the sensor selection, mounting configuration, and spacing. Also, an incorrect expected fluid sound velocity can cause issues, so verify that the entered expected sound velocity is correct for the application. The pipe might also be mostly empty, causing the meter to operate on pipe noise; ensure the pipe is completely filled with liquid or relocate sensors to a section that is normally full, avoiding installation on the top or bottom of horizontal pipes.
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Caitlin SalazarSep 12, 2025
Why does Siemens Measuring Instruments display active flow with large sound velocity error?
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  Michelle KleinSep 12, 2025
  If your Siemens Measuring Instruments display shows active flow with a large sound velocity error but no alarm codes, it might be due to incorrectly installed sensors or incorrect setup parameterization. Verify the pipe dimensions, sensor selection, mounting configuration, and spacing. Also, if the entered expected sound velocity is far from the actual fluid sound velocity, optimal performance won't be achieved. If possible, perform the sensor setup wizard again using the initially measured sound velocity for the expected sound velocity.
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Elizabeth WhitakerSep 12, 2025
What to do if Siemens Measuring Instruments display is completely blank and communication with service channel is not possible?
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  deborah81Sep 12, 2025
  If the display on your Siemens Measuring Instruments is completely blank and communication with the service channel is not possible, check the mains power connection. Verify that the PSU and transmitter modules are fully plugged into the backplane.
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yramirezSep 14, 2025
What to do if the keypad is not responsive on Siemens Measuring Instruments?
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  Laura DeleonSep 14, 2025
  If the keypad on your Siemens Measuring Instruments is not responsive, check the tightness of the lid screws. Cycle the power and allow several seconds for auto recalibration of the keypad.

Siemens SITRANS FST030 Specifications

General

Power supply	24 V DC
Enclosure rating	IP67
Material	Stainless Steel
Protection Rating	IP67
Medium	Gases
Nominal diameter	DN15 to DN300
Process temperature	-40 °C to +150 °C
Operating pressure	up to 40 bar
Accuracy	±1% of reading
Output signal	4-20 mA, pulse
Communication	HART
Gas types	Natural gas
Process Connection	Flanged, threaded
Ambient Temperature	-20 °C to +60 °C
Certifications	ATEX, IECEx